机械设计制造及其自动化 外文翻译 外文文献 英文文献 机械工程.doc

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1、Mechanicalengineering1.TheporfileofmechanicalengineeringEngingeeringisabranchofmechanicalengineerigjtstudiesmechanicalandpowergenerationespeciallypowerandmovement.2.Thehistoryofmechanicalengineering18thcenturylaterperiods,thesteamengineinventionhasprovidedamainpowerfountainheadfortheindustrialrevo

2、lution,enormouslyimpelledeachkindofmechznicalbiting.Thus^animportantbranchofanewEngineering一separatedfromthecivilengineeringtoolsandmachinesonthebranch-developedtogetherwithBirminghamandtheestablishmentoftheAssociantionofMechanicalEngineersin1847hadbeenofficiallyrecognized-Themechanicalengineering

3、alreadymainlyusedinbytrialanderrormethodmechanicapplicationtechnologicaldevelopmentintoprofessionalengineerthescientificmethodofwhichintheresearchJhedesignandtherealmofproductionused.Fromthemostbroadperspective,thedemendcontinuouslytoenhancetheefficienceyofmechanicalengineersimprovethequalityofwor

4、k.andaskedhimtoacceptthehistoryofthehighdegreeofeducationandtraining.Machineoperationtostressnotonlyeconomicbutalsoinfrastructurecoststoanabsoluteminimun.3.ThefieldofmechanicalengineeringThecommoditymachinerydevelopmentinthedevelopcountryjnthehighlevelmateriallifeverygreatdegreeisdecidedeachkindof

5、whichcanrealizeinthemechanicalengineering.Mechanicalengineersunceasinglywillinventthemachinenextlifetoproducethecommodity,unceasinglywilldeveloptheaccuracyandthecomplexitymoreandmorehighmachinetoolsproducesthemachine.Themaincluesofthemechanicaldevelopmentis:Inordertoenhancetheexcellentinqualityand

6、reasonableinpriceproducetoincreasetheprecisionaswellastoreducetheproductioncost.Thisthreerequirementspromotedthecomplexcontrolsystemdevelopment.Themostsuccessfulmachinemanufactureisitsmachineandthecontrolsystemclosefusion,whethersuchcontrolsystemisessentiallymechanicalorelectronic.Themodernizedcar

7、enginproductiontransmissionline(conveyerbelt)isaseriesofcomplexproductionscraftmechanizationverygoodexample.Thepeopleareintheprocessofdevelopmentinordertoenablefurtherautomationoftheproductionmachinery,theuseofac